| # | Company | Employees |
|---|---|---|
| 1 |
Raízenraizen.com.br
A global leader in bioenergy, driving the energy transition with an integrated model from production to distribution, focusing on sustainability and innovation |
28,835 |
| 2 |
CSN - Companhia Siderúrgica Nacionalcsn.com.br
One of the most efficient integrated steel complexes globally, operating in five key sectors: steelmaking, mining, logistics, cement, and energy |
20,603 |
| 3 |
Ultraultra.com.br
A leading Brazilian company with over 85 years of experience, operating in energy, oil, infrastructure, liquid bulk storage, retail, and digital payment services |
7,046 |
| 4 | 5,991 | |
| 5 |
Enel Brasilenel.com.br
Global energy player, Brazilian leader in renewable generation, providing distribution and generation services to millions of customers in São Paulo, Rio de Janeiro, and Ceará. |
5,778 |
| 6 |
Ultragazultragaz.com.br
Provides energy solutions focused on customer convenience and sustainability, serving all regions of Brazil with dedicated service. |
5,377 |
| 7 |
Inpasainpasa.com.br
Leading industry in Latin America transforming cereals into clean and renewable solutions |
3,488 |
| 8 |
Copa Energiacopaenergia.com.br
Leading the way in innovative energy solutions, driving sustainable development with a focus on clean energy sources for a better future |
3,454 |
| 9 |
Biosevraizen.com
A leading player in the sugarcane industry that produces and sells ethanol, sugar, and clean energy while valuing simplicity, people, and community development |
2,768 |
| 10 |
Auren Energiaaurenenergia.com.br
Provides competitive energy supply, including electricity and natural gas, for industrial, commercial, and service sectors, managing numerous power plants and consumer units. |
2,476 |
| 11 |
ALE Combustíveiswww2.ale.com.br
A major fuel distributor with 20 years of experience, operating a network of 2,000 gas stations and prioritizing innovation, excellent service, and transparency |
2,310 |
| 12 |
EDP Brasilbrasil.edp.com
Operates across the entire value chain of the electricity sector, including generation, transmission, distribution, and energy solutions for 3.4 million customers. |
2,271 |
| 13 |
BP Bunge Bioenergiabp.com
A leading player in the Brazilian market for ethanol, electricity, and sugar, with 11 industrial units and 450,000 hectares of managed land |
2,124 |
| 14 |
Comgascomgas.com.br
A leading distributor of natural gas in Brazil with a vast network reaching over 13 million consumers in residential, commercial, and industrial sectors |
1,789 |
| 15 |
Odebrecht Agroindustrialodebrechtagroindustrial.com
Leading producer of ethanol, sugar, and biomass-based electricity Committed to competitiveness, valuing people, and promoting sustainability in local communities |
1,671 |
| 16 |
MWM Motores e Geradoresmwm.com.br
A Brazilian multinational specializing in structural components for capital goods, including engines, power generators, and lighting towers, with global reach |
1,637 |
| 17 |
Casa dos Ventos Energias Renováveiscasadosventos.com.br
Renewable energy solutions leader for businesses, spearheading Brazil's energy transition. Transforms natural resources into decarbonization strategies, building a sustainable future. |
1,608 |
| 18 |
TLPtlpservicos.com.br
A leading telecommunications provider with over 26 years of experience, offering comprehensive solutions for clients in Brazil with a focus on quality and cost-effective services |
1,595 |
| 19 |
Acelenacelen.com.br
An energy company investing, increasing efficiency, and boosting productivity in the Brazilian energy sector with high governance and safety standards, part of Mubadala Capital. |
1,590 |
| 20 |
Grupo Empresarial TBgrupotb.com.br
Provider of integrated solutions for corporate fleet leasing, clean energy, workforce supply, waste management, urban cleaning, and sustainability improvement for businesses |
1,417 |
| 21 |
AES Brasilaesbrasil.com.br
Integrated energy platform offering tailored sustainable solutions for small and large businesses, from energy generation to renewable development, aiming to accelerate the future of energy |
1,410 |
| 22 | 1,321 | |
| 23 |
Engeformengeform.com.br
A longstanding organization involved in engineering, real estate development, renewable energy, and structured investments, with a focus on sustainable solutions for society |
1,233 |
| 24 |
Engemon Engenharia & Construçãoengemon.com.br
An engineering, construction, and technology group offering integrated solutions nationwide with a focus on excellence and multidisciplinary services for various industries |
1,215 |
| 25 |
NM ENGENHARIA E CONSTRUÇÕES LTDA.nmengenharia.com.br
With over three decades of experience, the company offers maintenance, construction, and assembly services, certified for its Integrated Management System It prioritizes social responsibility and safety, earning recognition nationally and internationally |
1,208 |
| 26 |
Ultracargoultracargo.com.br
We are a logistics solutions provider with a focus on handling fuels, chemicals, and oils nationwide, backed by a strong history and large capacity terminals |
1,167 |
| 27 |
UCB Powerucbpower.com.br
Leading energy storage solutions, electronics manufacturing. Operations across Brazil and international offices. Driving energy transition, recognized as a top company. |
1,157 |
| 28 |
Serveng Civilsanserveng.com.br
A national company active since 1954, focusing on construction, energy, mining, and transportation while valuing partnerships, community, environment, and relationships |
1,133 |
| 29 |
CESP100.51.164.5
Founded in 1966, the company operates two hydroelectric plants, supplying energy to various distributors and the free energy market, focusing on sustainable solutions and wealth generation |
1,131 |
| 30 |
Comerc Energiacomerc.com.br
Provides innovative energy and decarbonization solutions, including energy efficiency, free energy market, and renewable generation with over 100 solar plants. |
1,106 |
| 31 |
CTG Brasilctgbr.com.br
Develops world with large-scale clean energy. Investments in hydroelectric, wind, and solar power plants in Brazil. Part of a global clean energy leader. |
1,081 |
| 32 |
Órigo Energiaorigoenergia.com.br
The company is a pioneer in distributed solar energy generation, providing accessible renewable energy solutions to customers across Brazil |
1,040 |
| 33 |
Orizon Valorização de Resíduosorizonvr.com.br
An environmentally-focused pioneer offering integrated waste management solutions including recycling, biogas generation, and renewable energy production to protect the environment and prevent contamination |
982 |
| 34 |
TECSIS - Tecnologia e Sistemas Avançados S/Atecsis.com.br
Specializing in wind turbine blades, we offer a complete solution from design and production to logistics and after-sales services |
965 |
| 35 |
Promon Engenhariapromonengenharia.com.br
An engineering firm providing infrastructure solutions for key sectors such as energy, manufacturing, mining, and oil & gas, with a strong track record of successful projects |
961 |
| 36 |
Câmara de Comercialização de Energia Elétrica - CCEE (Chamber of Electric Energy Commercialization)ccee.org.br
Operator of Brazil's electricity market, promoting fair trading, ensuring smooth market function, and fostering sector evolution discussions. |
941 |
| 37 |
Copersucar S.A.copersucar.com.br
Global leader in sugar and ethanol commercialization, integrating production from partner and non-partner mills for domestic and international markets |
802 |
| 38 |
Huawei Brasilhuawei.com
Global leader in ICT solutions, focusing on telecommunications, devices, and cloud computing Committed to creating value for telecom operators, businesses, and consumers worldwide |
775 |
| 39 |
ALUPARalupar.com.br
Leading energy holding in Latin America, specializing in transmission and generation infrastructure projects Expertise in power systems, hydro plants, engineering, and construction services |
757 |
| 40 |
Grupo Maringágrupomaringa.com.br
A group specializing in sugar, ethanol, renewable energy, and manganese ferroalloys production, with a focus on quality, safety, and community development |
756 |
| 41 | 726 | |
| 42 |
Âmbar Energiaambarenergia.com.br
Specializes in constructing and operating a thermoelectric plant and gas pipeline, contributing to regional development in Mato Grosso, Brazil |
718 |
| 43 |
Motrice Soluções em Energiamotricese.com.br
Specializing in EPC contracts for energy generation, cogeneration, transmission, and distribution projects |
638 |
| 44 |
LUZsualuz.com.br
We are a digital energy provider in Brazil, aiming to revolutionize the energy sector with innovation, technology, and consumer empowerment Join us and switch to a brighter future! |
560 |
| 45 |
CHS Incchsinc.com
Leader in global agribusiness owned by farmers, ranchers, and cooperatives Specializing in buying, storing, and trading grains, oilseeds, fertilizers, and ethanol in South America |
391 |
| 46 |
SPIC Brasilspicbrasil.com.br
One of the world's largest energy generators focused on accessible and sustainable development, with a strong presence in Brazil since 2017 |
345 |
| 47 |
Power2Gopower2go.com.br
A Brazilian company developing electric vehicle charging technology, providing easy and smart solutions for individuals, condos, businesses, and fleets |
51 |
| 48 |
Solar Panel Factory - LATAM-Brazilsolarnplus.com
Provider of solar panels for residential and commercial use, offering sustainable energy solutions to reduce carbon footprint and energy costs |
51 |
| 49 |
Voltyouvoltyou.com.br
Voltyou is a company focused on providing sustainable energy and technology solutions, specializing in solar power, lighting, electric chargers, and more |
21 |
| 50 |
Green Fuelgreenfuel.com.br
The company's system reduces emissions and optimizes fuel consumption by generating hydrogen on demand |
17 |
| 51 |
Nova Chargenovacharge.com.br
Pioneering sustainable and efficient electric mobility solutions with ultra-fast chargers, installation services, energy management, and a commitment to customer satisfaction and innovation |
2 |
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.
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